10gR2 Memory Requirements

Hi everyone,  

I'm planning an upgrade from 8i to 10gR2 and was a little surprised to see the memory requirements defined in Metalink note 316889.1 "Complete checklist for manual upgrades to 10gR2":  

• Ensure that the SHARED_POOL_SIZE and the LARGE_POOL_SIZE are at least 150Mb.
• Make sure the JAVA_POOL_SIZE initialization parameter is set to at least 150 MB.

I currently have 51 8i instances running with shared pool=118M, large pool=5m and java pool=32k, so this means I'll have to increase by 327MB per instance, for a total of 16GB.  

Just curious if anyone else has gotten by with acceptable performance on 10gR2 while using smaller allocations to large pool and java pool?  

Thanks,
Brandon Allen  

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